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rO r r r r rB \ s rB c @ s� e Zd Zdd� Ze�d�Zdejde fdd�Z de j fdd �Z de jfd d �Zde jfd d �Zdejdejdejdefdd�Zdedejejejf defdd�Z dS )�_DSAPrivateKeyc C �p || _ || _|| _| j j�d�}| j j�||| j jj| j jj� | j �|d |jjk� | j j� |d �| _ d S �NrD r � r' r � _evp_pkeyr r r rI rJ r � BN_num_bits� _key_size�r- r rC �evp_pkeyrF r r r r/ t s �z_DSAPrivateKey.__init__rV �signature_algorithmr= c C s t � t|� t| j| |�S r& )r r r; r' )r- rY r r r �signer� s z_DSAPrivateKey.signerc C sR | j j�d�}| j j�d�}| j j�d�}| j j�d�}| j j�d�}| j j�| j|||� | j �|d | j jjk� | j �|d | j jjk� | j �|d | j jjk� | j j�| j||� | j �|d | j jjk� | j �|d | j jjk� t j t j t j | j � |d �| j � |d �| j � |d �d�| j � |d �d�| j � |d �d�S )NrD r rE �rM �y)�public_numbers�x)r' r r r rI r r rJ � DSA_get0_keyr �DSAPrivateNumbers�DSAPublicNumbersrK rL )r- rF rG rH �pub_key�priv_keyr r r �private_numbers� s. ���z _DSAPrivateKey.private_numbersc C s� | j j�| j�}| j �|| j jjk� | j j�|| j jj�}| j j� d�}| j j� | j|| j jj� | j �|d | j jjk� | j j� |d �}| j j� ||| j jj�}| j �|dk� | j � |�}t| j ||�S )NrD r r )r' r � DSAparams_dupr r r rJ �gc�DSA_freer r_ �BN_dup� DSA_set0_key�_dsa_cdata_to_evp_pkey� _DSAPublicKey)r- rC rb � pub_key_dupr rX r r r r" � s" �� � z_DSAPrivateKey.public_keyc C sH | j j�| j�}| j �|| j jjk� | j j�|| j jj�}t | j |�S r& ) r' r re r r r rJ rf rg rB �r- rC r r r � parameters� s � z_DSAPrivateKey.parameters�encoding�format�encryption_algorithmc C s | j �|||| | j| j�S r& )r' �_private_key_bytesrT r )r- ro rp rq r r r � private_bytes� s �z _DSAPrivateKey.private_bytesr r. c C s t | j||�\}}t| j| |�S r& )r r' r )r- r r. r r r �sign� s �z_DSAPrivateKey.signN) r8 r9 r: r/ r �read_only_property�key_sizer r@ r rZ r r` rd � DSAPublicKeyr" � DSAParametersrn r �Encoding� PrivateFormat�KeySerializationEncryptionrA rs �typing�Union� asym_utils� Prehashedrt r r r r rP s s6 � ���� ����rP c @ s� e Zd Zdd� Ze�d�Zdedej de fdd�Z de j fd d �Zde jfd d �Zd ejdejdefdd�Zdededejejej f fdd�ZdS )rk c C rQ rR rS rW r r r r/ � s �z_DSAPublicKey.__init__rV r# rY r= c C s* t � t�d|� t|� t| j| ||�S )Nr# )r r � _check_bytesr r% r' )r- r# rY r r r �verifier� s �z_DSAPublicKey.verifierc C s | j j�d�}| j j�d�}| j j�d�}| j j�d�}| j j�| j|||� | j �|d | j jjk� | j �|d | j jjk� | j �|d | j jjk� | j j�| j|| j jj� | j �|d | j jjk� t j t j | j � |d �| j � |d �| j � |d �d�| j � |d �d�S )NrD r rE r[ ) r' r r r rI r r rJ r_ r ra rK rL )r- rF rG rH rb r r r r] � s( ���z _DSAPublicKey.public_numbersc C s2 | j j�| j�}| j j�|| j jj�}t| j |�S r& )r' r re r r rf rg rB rm r r r rn s � z_DSAPublicKey.parametersro rp c C s | j �||| | jd �S r& )r' �_public_key_bytesrT )r- ro rp r r r � public_bytes s �z_DSAPublicKey.public_bytesr r. c C s" t | j||�\}}t| j| ||�S r& )r r' r$ )r- r# r r. r r r r7 s �z_DSAPublicKey.verifyN)r8 r9 r: r/ r ru rv rA r r@ r r� r ra r] rx rn r ry � PublicFormatr� r| r} r~ r r7 r r r r rk � s4 �� � �� � ���rk )r| � cryptographyr �cryptography.exceptionsr �*cryptography.hazmat.backends.openssl.utilsr r r � cryptography.hazmat.primitivesr r �)cryptography.hazmat.primitives.asymmetricr r r r~ r r$ r% r; rx rB r? rP rw rk r r r r �<module> s d
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